著者
山崎 正利 池並 通裕 来生 淳 油井 聡 安部 茂 水野 伝一
出版者
公益社団法人日本薬学会
雑誌
薬学雑誌 (ISSN:00316903)
巻号頁・発行日
vol.104, no.7, pp.p769-774, 1984-07

The present study shows that some selected anti-cancer drugs induce tumor lysis in vitro in cooperation with phagocytic cells (drug-dependent cellular cytotoxicity ; DDCC) and that chemotherapeutic drugs augment the mediator-dependent killing activity of macrophages. Tumor cells pretreated with the drugs were susceptible to phagocytemediated killing. Tumor necrosis serum can also cooperate with some drugs in killing tumor cells. Moreover, some selected drugs can induce cytotoxic macrophages and the quantitative changes of phagocytes such as polymorphonuclear leukocytes. These results suggest that some anti-cancer drugs have the activities of inactivation of tumor cells and/or activation of host cells. Thus, tumor cells may be killed effectively in vivo by anti-cancer drugs through these mechanisms.
著者
平島 昭司 堀越 正美 中西 義信 平井 洋 関水 和久 水野 伝一 名取 俊二
出版者
公益社団法人日本薬学会
雑誌
Chemical & pharmaceutical bulletin (ISSN:00092363)
巻号頁・発行日
vol.35, no.2, pp.877-881, 1987-02-25

We previously reported the purification of eukaryotic transcription factor S-II and its phosphorylated form S-H' from Ehrlich ascites tumor cells. In this work, we modified the previous purification procedure to make it quicker and simpler. By this improved procedure, involving a different solubilization method, and improved buffer solutions and centrifugation processes, S-II could be purified to homogeneity from 1 kg of frozen cells in about 10 d instead of 1 month. The purity, specific activity and total yield of S-II purified by the new method were comparable to those obtained by using the previous method.